<template>
	<div>	
		<!--顶部滑动条区域-->
	 	<div id="slider" class="mui-slider">
				<div id="sliderSegmentedControl" class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted">
					<div class="mui-scroll">
						<!--<a :class="['mui-control-item',item.id==0?'mui-active':'']"  v-for="item in cates" :key="item.id" @click="getPhotoListByCateId(item.id)">
							{{item.title}}  
						</a>
						tap只有min-ui才能使用
						-->
						<a :class="['mui-control-item',item.id==0?'mui-active':'']"  v-for="item in cates" :key="item.id" @tap="getPhotoListByCateId(item.id)">
							{{item.title}}  
						</a>
					</div>
				</div>
			
			</div>
		
		<!--图片的区域-->
		<ul class="photo-list">
			<router-link v-for="item in list" :key="item.id" :to="'/home/photoinfo/'+item.id" tag="li">
				<!--<img v-lazy="item.img_url"/>-->
				<img src="http://pic.58pic.com/58pic/13/74/51/99d58PIC6vm_1024.jpg"/>
				<div class="info">
					<h1 class="info-title">{{item.title}}</h1>
					<div class="info-zhaiyao">{{item.zhaiyao}}</div>
				</div>
			</router-link>
		</ul>
	</div>
</template>

<script>
	//1.导入MUI的js文件
	import mui from "../../lib/mui/js/mui.min.js"
	
	export default{
		data(){
			return {
				cates:[],  //所有分类的列表数组
				list:[],  //图片列表的数组
				imgsrc:"http://pic.58pic.com/58pic/13/74/51/99d58PIC6vm_1024.jpg"
			};
		},
		created(){
			this.getAllCategory();
			//默认进入页面就主动请求所有图片列表的数据
			this.getPhotoListByCateId(0);
		},
		mounted(){   
			//当组件中的DOM结构被渲染好，并放到页面中后，执行这个钩子函数
			//如果要操作元素，最好在mounted里面，因为这个时候，DOM元素是最新的
			//2.初始化滑动控件
			mui(".mui-scroll-wrapper").scroll({
				deceleration:0.0005
			});
		},
		methods:{
			getAllCategory(){
				//获取所有的图片分类
				this.$http.get('api/getimgcategory').then(result =>{
					if(result.body.status === 0){
						//手动拼接一个最完整的分类列表
						result.body.message.unshift({title:"全部",id:0});
						this.cates = result.body.message;
						console.log('this.cates',this.cates)
					}
					
				})
			},
			getPhotoListByCateId(cateId){
				this.$http.get('api/getimages/'+cateId).then(result => {
					if(result.body.status === 0){
						//手动拼接一个最完整的分类列表
						this.list=result.body.message
						
						console.log('this.list',this.list)
					}
				})
			}
		}
	};
	
</script>

<style lang="scss" scoped="">
*{
	touch-action: pan-y;
}
.photo-list{
	list-style: none;
	margin: 0;
	padding:10px ;
	padding-bottom: 0;
	li {
		background: gray;
		text-align: center;
		margin-bottom: 10px;
		box-shadow: 0 0 6px #999;
		position: relative;
		img{
			width: 100%;
			vertical-align: middle;
		}
		img[lazy="loading"]{
			width: 40px;
			height: 300px;
			margin: auto;
		}
		.info{
			color:white;
			text-align: left;
			position: absolute;
			bottom: 0;
			background-color: rgba(0,0,0,0.4);
			max-height: 84px;
			.info-title {
				font-size:14px ;
			}
			.info-zhaiyao{
				font-size:13px ;
			}
		}
	}
}


img{
	width: 300px;
	height: 300px;
}
</style>